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Add ioctls to enable and disable local controls on an instrument

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These ioctls provide support for the USBTMC-USB488 control requests
for REN_CONTROL, GO_TO_LOCAL and LOCAL_LOCKOUT

Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dave Penkler
2016-01-27 19:25:24 +01:00
committed by Greg Kroah-Hartman
parent 29779d89fd
commit 379d3d33c8
2 changed files with 76 additions and 0 deletions
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6
include/uapi/linux/usb/tmc.h
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@@ -33,6 +33,9 @@
#define USBTMC_REQUEST_GET_CAPABILITIES 7
#define USBTMC_REQUEST_INDICATOR_PULSE 64
#define USBTMC488_REQUEST_READ_STATUS_BYTE 128
#define USBTMC488_REQUEST_REN_CONTROL 160
#define USBTMC488_REQUEST_GOTO_LOCAL 161
#define USBTMC488_REQUEST_LOCAL_LOCKOUT 162
/* Request values for USBTMC driver's ioctl entry point */
#define USBTMC_IOC_NR 91
@@ -44,6 +47,9 @@
#define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7)
#define USBTMC488_IOCTL_GET_CAPS _IOR(USBTMC_IOC_NR, 17, unsigned char)
#define USBTMC488_IOCTL_READ_STB _IOR(USBTMC_IOC_NR, 18, unsigned char)
#define USBTMC488_IOCTL_REN_CONTROL _IOW(USBTMC_IOC_NR, 19, unsigned char)
#define USBTMC488_IOCTL_GOTO_LOCAL _IO(USBTMC_IOC_NR, 20)
#define USBTMC488_IOCTL_LOCAL_LOCKOUT _IO(USBTMC_IOC_NR, 21)
/* Driver encoded usb488 capabilities */
#define USBTMC488_CAPABILITY_TRIGGER 1